cleaning valve covers?
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cleaning valve covers?
i am trying to clean up my 460 a bit. my valve covers are what appears to be a natural aluminum finish. (several bolts in the middle of cover instead of edges) anyway they are very dull and stained. are these aluminum and can they be restored? also there is a large hose connected at the base of the oil fill opening. what purpose does this serve. i know the pcv valve and hose are on the other valve cover to ventilate crankcase. can this one be capped without harming the motor?
thanks dan
thanks dan
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From: michigan
You really shouldn't cap the breather hose near the oil filler neck. Although your PCV valve is on the other valve cover, that's only 1/2 of the PCV system -- the "suction" side. It's connected to a vacuum port on the intake. The hose on oil fill neck is the other 1/2 of the PCV system - the "supply" side. The hose you're talking about eliminating should be connected to the air cleaner box and have its own little filter. If you cap it, the engine is going to keep sucking through the PCV valve, and that air it needs will be coming from somewhere it shouldn't, and will be unfiltered.
Long answer to a short question, but thought you might appreciate an explanation behind why you shouldn't cap that particular hose.
On a side note, anyone here know of aftermarket centerbolt valve covers for the later 460s? Mine are also looking pretty bad and I was wondering what my options are?
Long answer to a short question, but thought you might appreciate an explanation behind why you shouldn't cap that particular hose.
On a side note, anyone here know of aftermarket centerbolt valve covers for the later 460s? Mine are also looking pretty bad and I was wondering what my options are?
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From: michigan
Dan,
Sorry - just noticed the year of your machine. (Chalk it up to me being a rookie here.) My answer is still the same, but obviously you don't have an airbox for the PCV hose to connect to. Ideally, that large hose on the oil filler neck should run to the base of your air cleaner on the "clean" side of the filter, or to a small filter within the air cleaner assy, if it isn't already. Main idea is to somehow provide filtered air into that valve cover. . .
Sorry - just noticed the year of your machine. (Chalk it up to me being a rookie here.) My answer is still the same, but obviously you don't have an airbox for the PCV hose to connect to. Ideally, that large hose on the oil filler neck should run to the base of your air cleaner on the "clean" side of the filter, or to a small filter within the air cleaner assy, if it isn't already. Main idea is to somehow provide filtered air into that valve cover. . .
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thanks for the info. currently it is running to the backside of the air cleaner (cheap aftermarket) with no filter at the where the hose attaches to the aircleaner. so at this point i am running unfilterd air to the valve cover. i am thinking about installing a K&N filter. is it difficult to connect this hose into this type of system?
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